Question

Degeneracy in genetic code exists because

• A. More than one codon can code for a single amino acid
• B. One codon can code for multiple amino acids
• C. More than on anticodon can bind to a given codon
• D. Only one anticodon can bind to a given codon
• E. None of the above

Answer 1

The correct option is A More than one codon can code for a single amino acid

Codons exhibit many properties, where degeneracy of codons is one of them.

Degeneracy of codons refers to that one amino acid can be coded by more than one than one codon. Example: isoleucine can be coded by AUU, AUC, AUA.

Proline is encoded by CCU, CCC, CCA, CCG.

So, the correct option is 'More than one codon can code for a single amino acid'.